<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" clearable @clear="getGoodsList" v-model="queryInfo.query" class="input-with-select">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
      <el-table :data="goodsList" stripe border>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称" ></el-table-column>
        <el-table-column width="95px" prop="goods_price" label="商品价格" ></el-table-column>
        <el-table-column width="70px" prop="goods_weight" label="商品重量" ></el-table-column>
        <el-table-column width="160px" prop="add_time" label="创建时间" >
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column width="130px" label="操作" >
          <template slot-scope="scope">
            <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
            <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeGoods(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 完整的分页功能 -->
      <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[5, 10, 15, 20]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  created(){
    this.getGoodsList()
  },
  data(){
    return {
      // 查询参数对象
      queryInfo:{
        query:'',
        // pagenum对应当前页
        pagenum:1,
        pagesize:10,
      },
      goodsList:[],
      total:0,
    }
  },
  methods:{
    // 获取商品列表
    async getGoodsList(){
      const {data:res} = await this.$http.get('goods',{
        params:this.queryInfo
      })
      if(res.meta.status !== 200){
        return this.$message.error('参数获取错误')
      }
      this.goodsList = res.data.goods
      this.total = res.data.total
      console.log(this.goodsList);
    },
    // 一页显示多少条
    handleSizeChange(currentChange){
      this.queryInfo.pagesize = currentChange
      this.getGoodsList()
    },
    // 前往多少页
    handleCurrentChange(currentPage){
      this.queryInfo.pagenum = currentPage
      this.getGoodsList()
    },
    // 删除商品
    async removeGoods(id){
      const confirm = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err=>err)
      if(confirm !== 'confirm'){
        return this.$message.info('已取消删除')
      }
      const {data:res} = await this.$http.delete(`goods/${id}`)
      if(res.meta.status !== 200){
        return this.$message.error('删除失败')
      }
      this.$message.success('删除成功')
      this.getGoodsList()
    },
    // 点击添加商品按钮前往添加商品页面
    goAddpage(){
      this.$router.push('/goods/add')
    },
  }
}
</script>

<style>

</style>